A more precise definition could help cities and governments prepare and respond to hazards.
Research Spotlights
Research spotlights are plain-language summaries of recent articles published in AGU’s suite of 24 journals.
Posted inResearch Spotlights
Restored Wetlands Could Lower Local Surface Temperatures
A 3-year study of wetlands and cropland in a major California delta highlights the need to consider the physical effects of vegetation when planning land use changes.
Posted inResearch Spotlights
Brown Carbon from Increased Shipping Could Harm Arctic Ice
Emission from a ship’s engine gives clues to how much light-absorbing molecules may build up on and above snow and sea ice. Such emissions are likely to increase as more ships venture into the Arctic.
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High-Altitude “Wind Walls” Discovered near Magnetic Poles
Satellite imaging reveals two narrow channels of extreme winds surrounded by gentle opposing flow 140–250 kilometers above sea level.
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Why Trace Metals Cling to the Ocean’s Skin
Metals within the millimeter-thick sea surface microlayer may impact ocean health and climate.
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Evidence of Regional Deposition in Mars’s South Polar Deposits
Shallow Radar correlation of discrete units in one of the Red Planet’s largest ice reservoirs suggests that its material was emplaced as a single, regional deposit.
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Improving Air Quality Could Prevent Thousands of Deaths in India
More stringent emission controls are key to the country’s future health.
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How Two Massive Space Storms Zapped Alaska
New study reveals how space weather causes rapid fluctuations in Earth’s surface geomagnetic field.
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Rising Seas Increase Methane Emissions from the Mouths of Rivers
Drowned river deltas exhale large quantities of greenhouse gas, new study finds.
Posted inResearch Spotlights
Scraping Bottom: Iceberg Scours Reveal North Atlantic Currents
A 3-D seismic analysis of Pleistocene iceberg gouges indicates that surface currents in the Norwegian Sea flowed northward and remained consistent during numerous glacial cycles.